SYSTEM AND METHOD FOR ENCODING DATA FOR DIGITAL GROUND-WAVE DATA BROADCASTING

摘要

PURPOSE: A system and method for encoding data for digital ground-wave data broadcasting are provided to encode additional data according to ATSC data broadcasting standard so as to synchronize the additional data with a broadcasting program and transmit the data. CONSTITUTION: A data encoding system includes a controller(21), a protocol capsulation unit(22), an object divider(23), a table generator(24), a multiplexer(25), and an output unit(26). The controller generates a control signal according to encoding information inputted from the outside. The protocol capsulation unit capsulates additional data with a protocol defined by data broadcasting standard according to the control signal. The object divider divides an MPEG-4 file into an initial object descriptor, a binary format for scene, an object descriptor and a stream according to the control signal. The table generator generates a program specific information/service description framework table required for demultiplexing of data broadcasting transport streams. The multiplexer multiplexes transport stream packets inputted from the protocol capsulation unit and the table generator. The output unit outputs the transport streams received from the multiplexer.